help with cleaning a new used tank

This is a discussion on help with cleaning a new used tank within the Beginner Saltwater Aquariums forums, part of the Saltwater Fish and Coral Reef Tanks category; -->
Today I bought a used 30 gal tank. It has everything with it: tank, hood, light, pump, filter, rocks and plants. This is a ...

Today I bought a used 30 gal tank. It has everything with it: tank, hood, light, pump, filter, rocks and plants. This is a fresh water tank. I need to know how what products to use to clean the lime and buildup off of it. A friend told me to use CLR, but I dont know if I can or not. Please help.